A254984 Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the diagonal and antidiagonal minus the sum of the minimums of the central row and column nondecreasing horizontally and vertically

10285, 56002, 319420, 2120266, 13519728, 86136256, 562741035, 3653027246, 23677521060, 153690383705, 998230865006, 6479204181625, 42060540310539, 273045520110028, 1772515663903131, 11506332454958673, 74695053097055563

Offset

1,1

Comments

Column 3 of A254989

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

Some solutions for n=2
..0..0..0..0..0....0..0..1..1..0....1..0..0..1..1....0..1..0..1..0
..0..1..1..0..1....0..0..0..0..1....1..0..0..0..0....0..0..0..0..0
..0..0..0..0..0....0..0..1..1..1....0..0..0..0..1....0..0..0..0..1
..1..0..0..1..1....0..0..0..1..1....0..1..0..0..1....0..1..0..1..0

Crossrefs

Cf. A254989

Sequence in context: A200712 A257191 A257184 * A241788 A187937 A154089

Adjacent sequences: A254981 A254982 A254983 * A254985 A254986 A254987

Keyword

nonn

Author

R. H. Hardin, Feb 11 2015

Status

approved